P
US7716558B2ExpiredUtilityPatentIndex 63

Method and system for adaptive interleaving

Assignee: AT & T IP I LPPriority: Apr 17, 1998Filed: Jun 18, 2008Granted: May 11, 2010
Est. expiryApr 17, 2018(expired)· nominal 20-yr term from priority
Inventors:STARR THOMAS J J
H04L 1/0075H04L 1/20H04L 1/0021H04L 1/0026H04L 1/0015H04L 1/0045H03M 13/353H04L 1/0025H03M 13/2792H04L 1/0003H03M 13/2789G06F 21/56H04L 1/0001H03M 13/6508H04L 1/0071
63
PatentIndex Score
1
Cited by
71
References
5
Claims

Abstract

A method a system for automatically controlling an adaptive interleaver involves monitoring performance parameters of a transmission system and controlling the adaptive interleaver in response to the performance parameters. The SNR and the data rate of the transmission system are preferably determined. The data rate is analyzed and the adaptive interleaver is adjusted in response to the data rate and the SNR. Alternatively, the BER and the data rate of the transmission system are determined. The data rate is analyzed and the adaptive interleaver is adjusted in response to the data rate and the BER. Alternatively, any one of the SNR, BER or data rate can alone be monitored and used to the adaptive interleaver. The system provides a effective system for adjusting an adaptive interleaver in response to performance parameters of a transmission system.

Claims

exact text as granted — not AI-modified
1. A hardware implemented method in a controller for an adaptive interleaver comprising steps to:
 determine the signal to noise ratio of the transmission channel; 
 determine the data rate of the transmission channel; 
 determine whether the data rate exceeds a threshold; 
 analyze the signal to noise ratio of a transmission channel; 
 analyze the data rate of the transmission channel; and 
 generate a interleave control signal based on the analysis of the signal to noise ratio and the data rate of the transmission channel wherein the signal controls an interleave depth. 
 
   
   
     2. The hardware implemented method of  claim 1 , wherein the control signal is an analog signal. 
   
   
     3. The hardware implemented method of  claim 1 , wherein the control signal is a digital signal. 
   
   
     4. A computer implemented method implemented for controlling an adaptive interleaver comprising steps of:
 determining the signal to noise ratio of the transmission channel; 
 determining the data rate of the transmission channel; 
 determining whether the data rate exceeds a threshold; 
 analyzing the signal to noise ratio of a transmission channel; 
 analyzing the data rate of the transmission channel; and 
 generating a interleave control signal based on the analysis of the signal to noise ratio and the data rate of the transmission channel wherein the signal controls an interleave depth. 
 
   
   
     5. A method for controlling an adaptive interleaver comprising steps of:
 determining the signal to noise ratio of the transmission channel; 
 determining the data rate of the transmission channel; 
 determining whether the data rate exceeds a threshold; 
 analyzing the signal to noise ratio of a transmission channel; 
 analyzing the data rate of the transmission channel; and 
 generating a interleave control signal based on the analysis of the signal to noise ratio and the data rate of the transmission channel wherein the signal controls an interleave depth.

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